Topic:light

Create your own DIY lighting around a LED light bulb hanging on a wire. This resourceful video from The Lighting Channel shares 10 ways to change a lightbulb: with paper, crochet, a bottle, a bowl, paper mâché, ductin...

High over St. Petersburg, Russia, from the top of a construction crane at the Lakhta Center, a huge rainbow can be seen in its full form: a circle. Phil Plait explains the science in his 2014 Bad Astronomy article:
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Engineer, maker, and 3D printing enthusiast Evan Stanford has created a 3D printed, hand-cranked mechanical laser show machine that 'draws' with projected light. The drawn shapes are created with two rotating cams tha...

The intensity of sunlight on Earth is about 1300 Watts per square meter. When you focus the sun's rays using a magnifying glass (or in this case sphere of water) you can increase the intensity roughly ten thousand fol...

Jazzy music plus light bulbs made by hand! This promotional video from William & Watson in London, England demonstrates how their vintage filament bulbs are put together and tested. From Wikipedia:
An incandescent...

Jim Woodward is a lampist. A what, you ask? A lampist's main job is to keep the enormous, delicate glass lenses of lighthouse lights in tip-top shape so that ships at sea stay safe. But over the years, glass lenses ha...

How do we perceive faces? With some balloons, newspaper, some paste for paper mâché, and paints, you can create a hollow mask that appears to follow you as you move back and forth around the room. Rachel and her child...

Within each of these jars, someone has written and enclosed a note about what is in their heart. The blinking lights, RGB LEDs that illuminate the sealed jars from below, are set to echo the heart rate of each note wr...

SkyGlowProject.com presents POLI'AHU, a time lapse trip above the clouds to Mauna Kea in Hawaii, an inactive volcano 14,000 feet above sea level. Much of the mountain is under water; when measured from its oceanic bas...

The Hawaiian bobtail squid (Euprymna scolopes) spends its days buried in sand and its nights stalking prey in the shallow waters off the coast of Hawaii. Just because the squid hunts at night, however, doesn’t mean th...

Sand pendulums are an easy and beautiful method for students of all ages to learn a bit about the harmonic motion. These devices are easy to build and can be adjusted to give a variety of patterns. A pendulum that beg...

French post-Impressionist painter Georges Seurat is well-known for his pointillism technique and for his depictions of life in the late 1800s. In observing his painting Circus Sideshow (Parade de cirque), we see these...

Tim Linhart was an ice sculptor in Colorado. One day he carved an upright string bass from ice and was astonished at the beautiful sound it made. Now he is the founder of Ice Music, based in Luleå, Swedish Lapland. Ic...

In this Vox video from Joss Fong and Dion Lee, we get a look at the technological changes that have influenced how the BBC creates their world-renowned nature documentaries. Compare the groundbreaking access of the ve...

How does the internet work on your laptop, phone, and other wireless devices without any connecting cables? How does your television remote work? In this episode of Circuit Playground, Adabot learns about electromagne...

In 1879, Thomas Edison and his research team developed a durable carbon-filament light bulb. In the 1880s and 90s, when glass had to be blown by hand, the skilled Corning glassblowers that Edison hired could produce t...